In this paper, we developed the hydraulic leveling jack(HLJ) with double-tube type structure which could be applicable to excessive lateral load area. In order to develop HLJ, the design requirements, such as the vertical and lateral loads where applied to hydraulic jack, were selected. To verify the structural stability of the HLJ, the structure analysis was performed. In order to verify the operational performance and structural stability of the developed HLJ, test bench was designed. The performance of HLJ was verified via various test using test bench.

Conventional approach for restraining additional lateral movement of bridge abutment is to decrease applied load by replacing rear ground with EPS block, ALC(autoclaved lightweight concrete), to increase soil resistance by applying tie-rod, geo-grid, permanent anchor, counterweight fill, and to increase lateral bearing capacity of soil by installing grouting, restraint pile. With properly restrained lateral movement of bridge abutment by applying those methods, the expansion joint and bridge bearing can be repaired after securing expansion joint gaps by cutting off concrete slabs and steel box girder. In this paper, the proposed approach for securing expansion joint gaps by restoring displaced bridge abutment to its original position with the use of hydraulic jacking device is discussed. By using hydraulic jacking device, cutting off concrete slabs and steel box girder is unnecessary.